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2
Logtalk/CUSTOMIZE.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/INSTALL.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/QUICK_START.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/README.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

27
Logtalk/RELEASE_NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================
@ -10,6 +10,31 @@ RELEASE NOTES
=============
2.30.2 - June 24, 2007
Updated the Logtalk compiler to throw a compilation error when duplicated
or conflicting predicate scope directives are found.
Updated the Logtalk compiler to correct a cosmetic glitch when reporting
compilation errors.
Updated the Logtalk compiler to check for mismatches between the argument
of this/1 calls and the parametric object identifier.
Corrected a bug in the implementation of the multi-threading built-in
predicate threaded_ignore/1.
Revamped the "threads/buffer" example to support setting the buffer
maximum number of items.
Added a new DCG example, "dcgs/morse.lgt", for parsing messages in Morse
code.
Extended the "parametric" example to illustrate a solution for dealing
with inheritance when defining "setter" predicates/methods that return
updated object identifiers.
2.30.1 - June 12, 2007
Added a new, experimental control construct, :/1, for calling imported

2
Logtalk/UPGRADING.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/contributions/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/contributions/xml_parser/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/contributions/xml_parser/SCRIPT.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/aliases/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/aliases/SCRIPT.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/assignvars/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/assignvars/SCRIPT.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/benchmarks/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/benchmarks/SCRIPT.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/birds/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/birds/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/bottles/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/bottles/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/bricks/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/bricks/SCRIPT.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/classvars/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/classvars/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

13
Logtalk/examples/dcgs/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================
@ -35,6 +35,17 @@ objects and categories:
bypass
using the {} DCG construct together with the {} Logtalk control
construct
tokenizer
natural language tokenizer example
macaddr
validator for MAC addresses
morse
decoder for Morse code messages; illustrate how to use scope
directives to declare grammar rule non-terminals
This folder contains an example ("tokenizer") adopted with permission from
a Michael A. Covington example (http://www.ai.uga.edu/~mc/). See the file
"tokenizer.lgt" for more details.
This folder contains two examples of DCGs ("bom" and "faa") adopted with
permission from the Amzi! Prolog documentation. The documentation is

12
Logtalk/examples/dcgs/SCRIPT.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================
@ -20,13 +20,21 @@ Result = -9
yes
% Recognize MAC addresses:
% recognize MAC addresses:
| ?- macaddr::valid("00:1e:4a:ef:72:8b").
yes
% decode Morse code messages:
?- morse::phrase(morse(Message), "... --- ...").
Message = [sos]
yes
% solve a cellphone keypad encoded enigma:
| ?- enigma::solve("4 96853 5683 86 4283 346637 9484 968 8664448", Message).

1
Logtalk/examples/dcgs/enigma.lgt
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@ -7,7 +7,6 @@
date is 2006/01/22,
comment is 'Example of using DCG rules to decrypt a enigma where words are made of numbers corresponding to the characters on a cellphone keypad.']).
:- public(solve/2).
:- public(solve/2).
:- mode(solve(+string, -list(atom)), zero_or_one).
:- info(solve/2, [

1
Logtalk/examples/dcgs/loader.lgt
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@ -7,6 +7,7 @@
parsetree,
sentences,
tokenizer,
morse,
macaddr,
url,
xml,

86
Logtalk/examples/dcgs/morse.lgt Normal file
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@ -0,0 +1,86 @@
:- object(morse).
:- info([
version is 1.0,
author is 'Paulo Moura',
date is 2007/06/14,
comment is 'Morse code decoder.']).
:- public(morse//1).
:- mode(morse(-list(atom)), zero_or_one).
:- info(morse//1, [
comment is 'Recognizes a message in Morse code, returning the corresponding list of words.',
argnames is ['Words']]).
morse([Word| Words]) --> word(Characters), {atom_chars(Word, Characters)}, " ", morse(Words).
morse([Word]) --> word(Characters), {atom_chars(Word, Characters)}.
word([Character| Characters]) --> character(LM), {code(Character, LM)}, " ", word(Characters).
word([Character]) --> character(Symbols), {code(Character, Symbols)}.
character([Symbol| Symbols]) --> symbol([Symbol]), character(Symbols).
character([Symbol]) --> symbol([Symbol]).
symbol(".") --> ".".
symbol("-") --> "-".
code(a, ".-").
code(b, "-...").
code(c, "-.-.").
code(d, "-..").
code(e, ".").
code(f, "..-.").
code(g, "--.").
code(h, "....").
code(i, "..").
code(j, ".---").
code(k, "-.-").
code(l, ".-..").
code(m, "--").
code(n, "-.").
code(o, "---").
code(p, ".--.").
code(q, "--.-").
code(r, ".-.").
code(s, "...").
code(t, "-").
code(u, "..-").
code(v, "...-").
code(w, ".--").
code(x, "-..-").
code(y, "-.--").
code(z, "--..").
code('1', ".----").
code('2', "..---").
code('3', "...--").
code('4', "....-").
code('5', ".....").
code('6', "-....").
code('7', "--...").
code('8', "---..").
code('9', "----.").
code('0', "-----").
code('.', ".-.-.-").
code(',', "--..--").
code('?', "..--..").
code('''', ".----.").
code('!', "-.-.--").
%code('!', "— — — ·").
code('/', "-..-.").
code('(', "-.--.").
code(')', "-.--.-").
code('&', ".-...").
code(':', "---...").
code(';', "-.-.-.").
code('=', "-...-").
code('+', ".-.-.").
code('-', "-....-").
code('_', "..--.-").
code('"', ".-..-.").
code('$', "...-..-").
code('@', ".--.-").
:- end_object.

2
Logtalk/examples/diamonds/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/diamonds/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/dynpred/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/dynpred/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/encodings/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/encodings/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/engines/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/engines/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/errors/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/errors/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/expansion/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/expansion/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/hello_world/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/hello_world/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/hooks/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/hooks/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/inheritance/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/inheritance/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/instmethods/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/instmethods/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/lo/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/lo/planner/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/lo/planner/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/lo/travellers/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/lo/travellers/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/logic/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/logic/SCRIPT.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/lpa/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/lpa/faults/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/lpa/faults/SCRIPT.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/lpa/timetables/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/metainterpreters/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/metainterpreters/SCRIPT.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/metapredicates/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/metapredicates/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/mi/NOTES.txt
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================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/mi/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/miscellaneous/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/miscellaneous/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/modules/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/modules/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/msglog/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/msglog/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/operators/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/operators/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/parametric/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

17
Logtalk/examples/parametric/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================
@ -71,3 +71,18 @@ NR = rectangle(2, 1, 3, 4)
X2 = 3
Y2 = 4
yes
% some queries with parametric objects that define "setter"
% methods that return updated object identifiers:
| ?- person(sally, 20)::grow_older(NewId).
NewId = person(sally, 21)
yes
| ?- employee(sally, 21, 1200)::give_raise(250, NewId).
NewId = employee(sally, 21, 1450)
yes

73
Logtalk/examples/parametric/parametric.lgt
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@ -201,7 +201,7 @@
/* The following parametric object illustrates a solution for implementing
modifiable object state. The idea is to represent object state by using
backtracable object state. The idea is to represent object state by using
object parameters, defining "setter" predicates/methods that return the
updated object identifier.
*/
@ -276,3 +276,74 @@
*/
:- end_object.
/* The following parametric objects show a solution for dealing with inheritance when
defining "setter" predicates/methods that return updated object identifiers.
*/
:- object(person(_Name, _Age)).
:- info([
version is 1.0,
author is 'Paulo Moura',
date is 2007/6/19,
comment is 'A simple representation for people using parametric objects.',
parnames is ['Name', 'Age']]).
:- public(grow_older/1).
:- mode(grow_older(-object_identifier), one).
:- info(grow_older/1,
[comment is 'Increments the person''s age, returning the updated object identifier.',
argnames is ['NewId']]).
grow_older(NewId) :-
::age(OldAge, NewAge, NewId),
NewAge is OldAge + 1.
:- protected(age/3).
:- mode(age(?integer, ?integer, -object_identifier), zero_or_one).
:- info(age/3,
[comment is 'Rectangle area.',
argnames is ['OldAge', 'NewAge', 'NewId']]).
age(OldAge, NewAge, person(Name, NewAge)) :- % this rule is compiled into a fact due to
this(person(Name, OldAge)). % compilation of the this/1 call inline
:- end_object.
:- object(employee(Name, Age, _Salary),
extends(person(Name, Age))).
:- info([
version is 1.0,
author is 'Paulo Moura',
date is 2007/6/19,
comment is 'A simple representation for employees using parametric objects.',
parnames is ['Name', 'Age', 'Salary']]).
:- public(give_raise/2).
:- mode(give_raise(+integer, -object_identifier), one).
:- info(give_raise/2,
[comment is 'Gives a raise to the employee, returning the updated object identifier.',
argnames is ['Amount', 'NewId']]).
give_raise(Amount, NewId) :-
::salary(OldSalary, NewSalary, NewId),
NewSalary is OldSalary + Amount.
:- protected(salary/3).
:- mode(salary(?integer, ?integer, -object_identifier), zero_or_one).
:- info(salary/3,
[comment is 'Rectangle area.',
argnames is ['OldSalary', 'NewSalary', 'NewId']]).
salary(OldSalary, NewSalary, employee(Name, Age, NewSalary)) :-
this(employee(Name, Age, OldSalary)).
age(OldAge, NewAge, employee(Salary, Name, NewAge)) :-
this(employee(Salary, Name, OldAge)).
:- end_object.

2
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/points/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/polygons/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/polygons/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/profiling/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/profiling/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/proxies/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/proxies/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/puzzles/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/puzzles/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/reflection/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/reflection/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/relations/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/relations/SCRIPT.txt
View File

@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/roots/NOTES.txt
View File

@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/roots/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/searching/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/searching/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/shapes/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/shapes/ch/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/shapes/ch/SCRIPT.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

2
Logtalk/examples/shapes/ph/NOTES.txt
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@ -1,6 +1,6 @@
================================================================
Logtalk - Open source object-oriented logic programming language
Release 2.30.1
Release 2.30.2
Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
================================================================

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